Alexander magee



(N0" M0del.) 5 2 Sheets-Sheet 1A A. MAGE-E. I

MACHINE FOR GRINDING GAR WHEELS.

Patented Man-29, 1898.

2 sheets sheet 2.

' (No Model.)

- A. MAGEE.

. MACHINE FOR GRINDING GAR WHEELS. No. 601,269

Patented Mar. 29,1898;

.U STATES PATENT OFFICE.

ALEXANDER MAGEE OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE ST. LOUIS OAR'WHEEL COMPANY, OF SAME PLACE.

MACHINE FOR GRINDING CAR-WHEELS.

- SPECIFICATION formingpart of Letters Patent No. 601,269, dated March 29, 1898.

Application iiled July 8 1897. Serial No. 643,808. (No model) To all whom it may concern.-

Be it known that I, ALEXANDER MAGEE, a citizen of the United. States, residing at the city of St. Louis, in the State of Missouri, have invented a certain new and useful Machine for Grindin g Oar-VVheels, of which the following is such afull, clear, and exact description as will enable any one skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

The object of my invention is to provide a machine for grinding car-wheels in which the emery-wheel is carried by a swinging frame in such a way that the shaft of the emerywheel can be inclined at will, so that the emery-wheel will make proper contact with the face of the car-wheel and so that the emery-wheel can be moved laterally across the face of the car-wheel.

My invention consists in the various novel features and details of construction described in the following specification and pointed out in the claims affixed hereto.

In the accompanyingdrawings,which illustrate a machine made inaccordance with my invention, Figure 1 is a front elevation. Fig. 2 is a view showing a detail of construction. Fig. 3 is a side elevation, and Fig. 4 is a view showing a detail of construction.

Like marks of reference refer tosirni-lar parts in the several views of the drawings.

5 is the bed-plate, on which are formed seats 6, in which are rigidly secured two bars 7.

Carried by the bars 7 is a sliding plate 8,.

which supports the working parts of the machine. Pivoted to a lug 9 on the bed-plate 5 is a lever 10. Pivoted to the lever 10 is one end of a link 11, the other end of which is pivoted to the sliding plate 8. Carried by the sliding plate 8 are two brackets 12, in which is pivoted a yoke 13. In the yoke 13 is journaled a shaft 14., on which is a pulley 15, around which the driving-belt passes, and a pulley 16. Rigidly carried by the yoke 13 and preferably formed integral therewith is a cylindrical portion 17, which is bored out for the reception of a stem 18. The stem 18 is free to slide in the part 17, but is kept from rotating by a feather 18 or other suitable means. In the bottom of the part 17 is a screw 19, by means of which the stem 18 can be forced outward. 0n the stem 18is rigidly secured a collar 20. On the collar 20'is carried a projection or lug 21, in which is pivoted one end of an extensible connecting-rod 22. The rod 22 is composed of two end pieces provided with right and left hand threads and a turnbuckle 23. The other end of the rod 22' is pivoted to an arm 24, carried by arockshaft 25, journaled in brackets carried on the sliding plate 8. The motion of the shaft 25 is controlled by a lever 26, which is rigidly secured to the end of the same.

28 is a hollow cylindrical member carried by a yoke 29 and oscillating on the end of the stem 18. In the yoke 29 is journaled a shaft 30, on which is carried a pulley 31 and an emery-wheel32. On the collar 20 is. an arm 33, to which is pivotally secured a block 34:, in which is journaled a rod 35, provided with a hand-wheel 36. On the yoke 29 is an arm 37, to which is pivotally secured an inter nally-threaded block 38, which receives the threaded end of the rod 35. To the yoke 29 is secured a rope 39, to which may be secured a weight to counterbalance the weight of the emery-wheel 32 and parts carrying it.

40 is the car-wheel to beground and which may be supported in any suitable manner.

The belts have been omitted in the drawings to better illustrate the machine, as the j operation can be readily understood without them.

The operation of my machine isas follows:

The driving-belt is passed around the pulley I 15 and the pulleys 16 and 31 are connected by a belt, so that the frame carrying the emcry-wheel 32 may be swung without stopping the rotation of said emery-wheel. The raising and lowering of the emery-wheel is controlled by the lever 26. When the lever 26 is moved toward the front of the machine, the shaft 25 is rotated and the motion com municated through the arm 24 and connecting-rod 22 to the frame carrying the emerywheel, thus raising it from the car-wheel 40. When it is desired to remove a car-wheel and place a new one in position, thelever 26 is moved. to its extreme forward position and allowed to rest upon one of the brackets 12. The lever will remain in this position, as the arm 2i and rod 22 will have passed the point where they were in a straight line and the weight of the parts will therefore tend to move the lever farther in the same direction. By rotating the turnbuckle 23 the length of the rod 22 can be adjusted to adapt the machine to different sizes of car-wheels. In order to secure proper contact between the emerywheel and the ear-wheel, the hand-wheel 36 is rotated, thus turning the yoke 29 around the stem 18 and inclining the shaft of the emery-wheel. The movement of the emerywheel across the face of the car-wheel is controlled by the lever 10, by means of which the sliding plate 8, carrying the working parts, is moved on the rods 7. To tighten or loosen the belt connecting the pulleys 16 and 31, the screw 10 is turned in one direction or the other.

I am aware that grinding-machines with swinging frames and also with rotating frames have been used heretofore and do not wish to be understood as broadly claiming the same.

Having fully described my invention,what I claim as new, and desire to secure by Letters Patent of the United States, is

1. In a grinding-machine, a suitable base, a sliding member carried thereby, means for actuating said sliding member, a swinging frame carried by said sliding member, means for actuating said swinging frame, a pivotally-mounted frame carried by said swinging frame, a grinding-wheel carried by said pivotally-mounted frame, and mechanism for turning said pivotally-mounted frame to incline the axis of said grinding-wheel.

2. In a grinding-machine, a suitable base, a sliding member carried thereby, means for actuating said sliding member, a swinging frame carried by said sliding member, adj ustable means for actuating said swinging frame, a pivotally-mounted frame carried by said swinging frame, a grinding-wheel carried by said pivotally-mounted frame, and mechanism for turning said pivotally-mounted frame to incline the axis of said grinding-wheel.

3. In a wheel-grinding machine, a suitable base, a yoke pivotally mounted thereon, a non-rotary stem carried by said yoke, means for moving said stem longitudinally, a second yoke pivotally mounted on said stem, means for turning said latter-named yoke, and a grinding-wheel carried by said latter-named yoke.

4-. In a wheel-grinding machine, a suitable base,a sliding member carried thereby, a yoke pivotally mounted on said sliding member, a non-rotary stem carried by said yoke, means for moving said stem longitudinally, a second yoke pivotally mounted on said stem, means for turning said latter-named yoke, and a grinding-wheel carried by said latternamed yoke.

5. In a wheel-grinding machine, a suitable base, a yoke pivotally mounted thereon, a non-rotary stem carried by said yoke, means for moving said stem longitudinally, a second yoke pivotally mounted on said stem, a grinding-wheel carried by said second yoke, an arm rigidly carried by said stem, and means interposed between said arm and said second yoke for moving said second yoke to incline the axis of said grinding-wheel.

6. In awheel-grinding machine, a suitable base, a sliding member carried thereby, a yoke pivotally mounted on said sliding member, a non-rotary stem carried by said yoke, means for moving said stem longitudinally, a second yoke pivotally mounted on said stem, a grinding-wheel carried by said second yoke, an arm rigidly carried by said stem, and means interposed between said arm and said second yoke for moving said second yoke to incline the axis of said grinding-wheel.

In testimony whereof I have hereunto set my hand and affixed my seal in the presence of the two subscribing witnesses.

ALEXANDER MAGEE.

Witnesses:

J. CLARENCE TAUSSIG, W. A. ALEXANDER. 

